حَدَّثَنَا ابْنُ نُمَيْرٍ عَنْ مَالِكٍ يَعْنِي ابْنَ مِغْوَلٍ عَنْ مُحَمَّدِ بْنِ سُوقَةَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ إِنْ كُنَّا لَنَعُدُّ لِرَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي الْمَجْلِسِ يَقُولُ رَبِّ اغْفِرْ لِي وَتُبْ عَلَيَّ إِنَّكَ أَنْتَ التَّوَّابُ الْغَفُورُ مِائَةَ مَرَّةٍ
مسند امام احمد بن حنبل · Hadith 4726
It was Narrated from Ibn 'Umar: We used to count how often the Messenger of Allah said in a gathering "O Lord forgive me and accept my repentance, for You are the Acceptor of repentance, the Oft-forgiving," (and he said it) one hundred times.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020